/**
 * @author Kelvin Qi
 * 控制弹出div
 */
var popup_dragging = false;
var popup_target;
var popup_mouseX;
var popup_mouseY;
var popup_mouseposX = 0;
var popup_mouseposY = 0;
var popup_oldfunction;
function popup_display(x)
{
	var win = window.open();
	for (var i in x) 
		win.document.write(i+' = '+x[i]+'<br>');
}
// ----- popup_mousedown -------------------------------------------------------
function popup_mousedown(e) {
	var ie = navigator.appName == "Microsoft Internet Explorer";
	if ( ie && window.event.button != 1) 
		return;
	if (!ie && e.button != 0) 
		return;
	popup_dragging = true;
	popup_target = this['target'];
	popup_mouseX = ie ? window.event.clientX : e.clientX;
	popup_mouseY = ie ? window.event.clientY : e.clientY;
	if (ie)
		popup_oldfunction = document.onselectstart;
	else 
		popup_oldfunction = document.onmousedown;
	if (ie)
		document.onselectstart = new Function("return false;");
	else 
		document.onmousedown = new Function("return false;");
}
// ----- popup_mousemove -------------------------------------------------------
function popup_mousemove(e) {
	if (!popup_dragging) 
		return;
	var ie = navigator.appName == "Microsoft Internet Explorer";
	var element = document.getElementById(popup_target);
	var mouseX = ie ? window.event.clientX : e.clientX;
	var mouseY = ie ? window.event.clientY : e.clientY;
	element.style.left = (element.offsetLeft+mouseX-popup_mouseX)+'px';
	element.style.top = (element.offsetTop +mouseY-popup_mouseY)+'px';
	popup_mouseX = ie ? window.event.clientX : e.clientX;
	popup_mouseY = ie ? window.event.clientY : e.clientY;
}
// ----- popup_mouseup ---------------------------------------------------------
function popup_mouseup(e) {
	if (!popup_dragging) 
		return;
	popup_dragging = false;
	var ie = (navigator.appName == "Microsoft Internet Explorer");
	var element = document.getElementById(popup_target);
	if (ie)
		document.onselectstart = popup_oldfunction;
	else 
		document.onmousedown = popup_oldfunction;
}
// ----- popup_exit ------------------------------------------------------------
function popup_exit(e) {
	var ie = navigator.appName == "Microsoft Internet Explorer";
	var element = document.getElementById(popup_target);
	popup_mouseup(e);
	element.style.visibility = 'hidden';
	element.style.display = 'none';
	pupup_first = true;
}
// ----- popup_show ------------------------------------------------------------
function popup_show() {
	element = document.getElementById('popup');
	drag_element = document.getElementById('popup_drag');
	exit_element = document.getElementById('popup_exit');
	element.style.position = "absolute";
	element.style.visibility = "visible";
	element.style.display = "block";
	element.style.left = (document.documentElement.scrollLeft+popup_mouseposX-10)+'px';
	element.style.top  = (document.documentElement.scrollTop +popup_mouseposY-10)+'px';
	drag_element['target'] = 'popup';
	drag_element.onmousedown = popup_mousedown;
	exit_element.onclick = popup_exit;
}
// ----- popup_mousepos --------------------------------------------------------
function popup_mousepos(e) {
	var ie = navigator.appName == "Microsoft Internet Explorer";
	popup_mouseposX = ie ? window.event.clientX : e.clientX;
	popup_mouseposY = ie ? window.event.clientY : e.clientY;
}
// ----- Attach Events ---------------------------------------------------------
if (navigator.appName == "Microsoft Internet Explorer")
	document.attachEvent('onmousedown', popup_mousepos);
else 
	document.addEventListener('mousedown', popup_mousepos, false);

if (navigator.appName == "Microsoft Internet Explorer")
	document.attachEvent('onmousemove', popup_mousemove);
else 
	document.addEventListener('mousemove', popup_mousemove, false);

if (navigator.appName == "Microsoft Internet Explorer")
	document.attachEvent('onmouseup', popup_mouseup);
else 
	document.addEventListener('mouseup', popup_mouseup, false);
	
var pupup_first = true;
function pop_top10(){
	window.open("/top10");
	return;
	if (navigator.appName == "Microsoft Internet Explorer") {
		window.open("/top10");
	}
	else {
		popup_show();
		if (pupup_first) {
			pupup_first = false;
			document.getElementById("top10_iframe").src = "http://greedy-snake.appspot.com/top10";
			document.getElementById("top10_iframe").style.height = "350px";
			element.style.left = parseInt((document.body.clientWidth - 502) / 2) + 'px';
			element.style.top = realyTop + 'px';
		}
	}
}
function hideWelcomeStartGame() {
	document.getElementById('welcomeDiv').style.display = 'none';
	document.getElementById('outerLayer').style.display = 'block';
	if(document.getElementById('MainMap')) {
		document.getElementById('MainMap').style.display = "block";
	}
	document.getElementById('str_title').innerHTML = '好友贪吃蛇';
	document.getElementById('str_startGmake').innerHTML = '开始游戏-Start';
}